objective(s): silver nanoparticles (ag nps) are not only specific physical and chemical properties but also are considered for their antibacterial activity and ecofriendly.materials and methods:in this study a simple, cost effective biologically method for ag+reducing to ag nps using echinops extractas a stabilizer, and reducing agent.ag nps were analyzed using uv-vis spectrometry,tem, xrd and ...

Background & Aims: Aflatoxin M1 is one of the most important toxins present in milk and the product of aflatoxin B1 metabolism in liver microsomes. The aim of this project was to study the aflatoxin M1 adsorption ability of polystyrene-hydroxyapatite nanocomposite. Methods: First, the probability of aflatoxin M1 adsorption by the nanocomposite was evaluated using the HyperChem simulation softwa...

Background & objectives: Aflatoxins are secondary metabolites of fungi and one of the most important types of mycotoxins identified as a carcinogen for humans. The aim of this study was to determine the level of aflatoxin M1 in milk production of dairy factories in east Azerbaijan province by high performance liquid chromatography (HPLC). Methods: In this study, 45 samples of pasteurized milk ...

This research work was focused on green synthesis of silver nanoparticles (Ag-NPs) employing an aqueous plant extract Ifloga spicata. The used in the nanoparticle served as a stabilizing and reducing agent. were characterized via various techniques such X-ray diffraction (XRD) technique, scanning electron microscopy (SEM), Fourier transform infrared (FT-IR) spectroscopy, UV-visible spectroscopy...

‎the annihilator graph $ag(r)$ of a commutative ring $r$ is a simple undirected graph with the vertex set $z(r)^*$ and two distinct vertices are adjacent if and only if $ann(x) cup ann(y)$ $ neq $ $ann(xy)$‎. ‎in this paper we give the sufficient condition for a graph $ag(r)$ to be complete‎. ‎we characterize rings for which $ag(r)$ is a regular graph‎, ‎we show that $gamma (ag(r))in {1,2}$ and...

aflatoxin m1 (afm1) is an important mycotoxin frequently found in milk and dairy products. dairy products and colostrum may be contaminated by aflatoxin m1 when dairy cattle have fed with aflatoxin b1-contaminated feeds. this study was undertaken in a dairy farm around tehran province to determine the presence and level of aflatoxin m1 (afm1) in spray dried and lyophilized colostrum samples. in...

traumatic brain injury (tbi) is physical damage to the brain structure which has a high global rate of mortality and morbidity. tbi can cause intense inflammatory response due to accumulation of leukocytes in cerebral matrix and activation of microglia. microglia can differentiate into m1 macrophages or m2 macrophages following the changes in biochemical properties of brain tissue. m1 sub type ...

abstract   introduction: diabetes mellitus accompanies with disturbances in learning, memory, and cognitive skills in the human society and experimental animals. considering the beneficial antidiabetic potential of apium graveolens (ag ), this research study was conducted to evaluate the effect of chronic i.p. administration of ag on learning and memory in diabetic rats using passive avoidance ...

Rye (Secale cereale L.) is important food crop in Russia. The study of the genetic diversity crops carried out using molecular markers. To identify effective primers, ISSR (Inter Simple Sequence Repeats), a method for determining DNA polymorphism, was used.The selection primers according to largest number polymorphic fragments, their clear amplification and reproducibility repeated PCR. Of 22 a...